<template>
  <div>
    <!--课程预览-->
    <div class="ccInfo">
      <img :src="coursePublish.cover">
      <div class="main">
        <h2>{{ coursePublish.title }}</h2>
        <p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
        <p><span>所属分类：{{ coursePublish.subjectParentTitle }} — {{ coursePublish.subjectTitle }}</span></p>
        <p>课程讲师：{{ coursePublish.teacherName }}</p>
        <h3 class="red">￥{{ coursePublish.price }}</h3>
      </div>
    </div>

    <div style="text-align: center">
      <el-button-group>
        <el-button :disabled="prevFlag" type="primary" icon="el-icon-arrow-left" @click="prev">上一步</el-button>
        <el-button :disabled="nextFlag" type="primary" @click="saveAndNext">发布课程<i class="el-icon-arrow-right el-icon--right"/></el-button>
      </el-button-group>
    </div>
  </div>
</template>
<script>
import courseApi from '@/api/course'
export default {
  data() {
    return {
      nextFlag: false,
      prevFlag: false,
      coursePublish: {}
    }
  }, created() {
    this.getCoursePublish()
  },
  methods: {
    saveAndNext() {
      /*
      * 此页面以后在form页面中引入使用
      * form 就是当前页面的父组件
      * info页面就是子组件
      * */
      this.nextFlag = true
      courseApi.coursePublish(this.coursePublish.id).then(r => {
        this.$message.success('课程发布成功')
        this.$parent.active = 3
      })
    },
    prev() {
      this.prevFlag = true
      this.$parent.active = 1
    },
    getCoursePublish() {
      courseApi.getCoursePublish(this.$parent.courseId).then(r => {
        console.log(r.data)
        this.coursePublish = r.data.item
      })
    }
  }
}
</script>

<style >
.ccInfo {
  background: #f5f5f5;
  padding: 20px;
  overflow: hidden;
  border: 1px dashed #DDD;
  margin-bottom: 40px;
  position: relative;
}
.ccInfo img {
  background: #d6d6d6;
  width: 500px;
  height: 278px;
  display: block;
  float: left;
  border: none;
}
.ccInfo .main {
  margin-left: 520px;
}

.ccInfo .main h2 {
  font-size: 28px;
  margin-bottom: 30px;
  line-height: 1;
  font-weight: normal;
}
.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}

.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}
.ccInfo .main h3 {
  left: 540px;
  bottom: 20px;
  line-height: 1;
  font-size: 28px;
  color: #d32f24;
  font-weight: normal;
  position: absolute;
}
</style>
